var H5P = H5P || {}; /** * Constructor for xAPI events * * @class */ H5P.XAPIEvent = function() { H5P.Event.call(this, 'xAPI', {'statement': {}}); }; H5P.XAPIEvent.prototype = Object.create(H5P.Event.prototype); H5P.XAPIEvent.prototype.constructor = H5P.XAPIEvent; /** * Helperfunction to set scored result statements * * @param {int} score * @param {int} maxScore */ H5P.XAPIEvent.prototype.setScoredResult = function(score, maxScore) { this.data.statement.result = { 'score': { 'min': 0, 'max': maxScore, 'raw': score } }; }; /** * Helperfunction to set a verb. * * @param {string} verb * Verb in short form, one of the verbs defined at * http://adlnet.gov/expapi/verbs/ */ H5P.XAPIEvent.prototype.setVerb = function(verb) { if (H5P.jQuery.inArray(verb, H5P.XAPIEvent.allowedXAPIVerbs) !== -1) { this.data.statement.verb = { 'id': 'http://adlnet.gov/expapi/verbs/' + verb, 'display': { 'en-US': verb } }; } else { console.log('illegal verb'); } // Else: Fail silently... }; /** * Helperfunction to get the statements verb id * * @param {boolean} full * if true the full verb id prefixed by http://adlnet.gov/expapi/verbs/ will be returned * @returns {string} - Verb or null if no verb with an id has been defined */ H5P.XAPIEvent.prototype.getVerb = function(full) { var statement = this.data.statement; if ('verb' in statement) { if (full === true) { return statement.verb; } return statement.verb.id.slice(31); } else { return null; } } /** * Helperfunction to set the object part of the statement. * * The id is found automatically (the url to the content) * * @param {object} instance - the H5P instance */ H5P.XAPIEvent.prototype.setObject = function(instance) { this.data.statement.object = { // TODO: Correct this. contentId might be vid, and this can't be Drupal // specific 'id': H5PIntegration.getContentUrl(instance.contentId), 'objectType': 'Activity', 'extensions': { 'http://h5p.org/x-api/h5p-local-content-id': instance.contentId } }; }; /** * Helper function to set the actor, email and name will be added automatically */ H5P.XAPIEvent.prototype.setActor = function() { var user = H5PIntegration.getUser(); this.data.statement.actor = { 'name': user.name, 'mbox': 'mailto:' + user.mail, 'objectType': 'Agent' }; }; /** * Get the max value of the result - score part of the statement * * @returns {int} the max score, or null if not defined */ H5P.XAPIEvent.prototype.getMaxScore = function() { return this.getVerifiedStatementValue(['result', 'score', 'max']); }; /** * Get the raw value of the result - score part of the statement * * @returns {int} the max score, or null if not defined */ H5P.XAPIEvent.prototype.getScore = function() { return this.getVerifiedStatementValue(['result', 'score', 'raw']); }; /** * Figure out if a property exists in the statement and return it * * @param {array} keys * List describing the property we're looking for. For instance * ['result', 'score', 'raw'] for result.score.raw * @returns the value of the property if it is set, null otherwise */ H5P.XAPIEvent.prototype.getVerifiedStatementValue = function(keys) { var val = this.data.statement; for (var i = 0; i < keys.length; i++) { if (val[keys[i]] === undefined) { return null; } val = val[keys[i]]; } return val; }; /** * List of verbs defined at http://adlnet.gov/expapi/verbs/ * * @type Array */ H5P.XAPIEvent.allowedXAPIVerbs = [ 'answered', 'asked', 'attempted', 'attended', 'commented', 'completed', 'exited', 'experienced', 'failed', 'imported', 'initialized', 'interacted', 'launched', 'mastered', 'passed', 'preferred', 'progressed', 'registered', 'responded', 'resumed', 'scored', 'shared', 'suspended', 'terminated', 'voided' ];